Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7669667 | Aerator with assembled multi-part crankshaft | Walter J. Petersen, Michael J. Gilberg | 2010-03-02 |
| 7293612 | Walk aerator with ground following coring head | Walter J. Petersen | 2007-11-13 |
| 7096969 | Walk aerator with inboard wheels | Walter J. Petersen, Jackie R. Gust, Michael J. Gilberg | 2006-08-29 |
| 6588191 | Method for providing grooved roller with variable shoulders | Dennis J. Berndt, Scott M. Coffin, David S. Klis, Richard M. Olson | 2003-07-08 |
| 6470663 | Rear discharge rotary cutting deck for mower | Thomas F. Langworthy, Daniel M. Treu | 2002-10-29 |